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valid_single.py
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valid_single.py
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# -*- encoding=utf-8 -*-
import argparse
import time
import numpy as np
import traceback
import torch
import torch.nn as nn
import logging
from torch.autograd import Variable
from model import BiaffineSegmentationModel
from data import Vocabulary,Dataset,FilesReaderDataset
from train import Trainer
from train import ModelSaver
from train import Optimizer
from train import create_parse
from module import EmbeddingPE
import math
import codecs
from train import SegLayerEvalSaver
from train import SegLayerLoss
from train import EvalSaver
from train import CNSeglayerLabelResult
def create_parse_valid():
parser = argparse.ArgumentParser()
# trainfiles
parser.add_argument("--logfiles", type=str, default=""
, help="path to log files")
parser.add_argument("--name", type=str, required=True
, help="name of dataset")
parser.add_argument("--evalfile", type=str, required=True)
parser.add_argument("--savefiles", type=str, required=True)
parser.add_argument("--showsteps", type=int, default=100)
parser.add_argument("--gpu", action="store_true")
parser.add_argument("--loss", default="crossentropyloss", choices=['crossentropyloss', 'nllloss'])
parser.add_argument("--valid_token", default='sentence', choices=['token', "sentence"])
parser.add_argument("--valid_batch_size", default=32, type=int)
parser.add_argument("--use_buffers",action="store_true")
parser.add_argument("--buffer_size",type=int,default=0)
parser.add_argument("--model",type=str,required=True)
return parser.parse_args()
def create_vocabs(opts,checkpointer):
vocabs = None
vocabs = checkpointer["vocabs"]
return vocabs
def create_embeddings(opts,train_ops,vocabs,checkpointer):
pretrain_embeddings = Variable(torch.Tensor(vocabs.word2vectors_arr))
embeddings = nn.Embedding.from_pretrained(pretrain_embeddings)
embeddings = EmbeddingPE(embeddings,train_ops.dropout,train_ops.dim,train_ops.position_encoding)
embeddings.load_state_dict(checkpointer["embeddings"])
if opts.gpu and torch.cuda.is_available():
embeddings = embeddings.cuda()
return embeddings
def create_valid_dataset(opts , vocabs,logger):
dataset = FilesReaderDataset(opts.evalfile,opts.valid_batch_size,
opts.valid_token,vocabs,opts.use_buffers,
opts.buffer_size,False,False)
logger.info("Dataset from %s, batch_size: %d" % (opts.evalfile, opts.valid_batch_size))
return dataset
import os
import logging
import sys
def init_logger(log_file = None ):
logger = logging.getLogger()
logger.setLevel(logging.INFO)
fh = logging.FileHandler(log_file, mode='a+')
fh.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
ch.setLevel(logging.INFO)
formatter = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s")
fh.setFormatter(formatter)
ch.setFormatter(formatter)
logger.addHandler(ch)
logger.addHandler(fh)
return logger
class Logger(object):
def __init__(self,logger):
self.logger = logger
def write(self,message):
self.logger.info(message)
def info(self,message):
self.write(message)
def flush(self):
pass
def create_logs(opts):
logger = Logger(init_logger(opts.logfiles))
sys.stdout = logger
return logger
def create_criterion(opts):
if opts.loss == "crossentropyloss":
return nn.CrossEntropyLoss(ignore_index=0)
elif opts.loss == "nllloss":
return nn.NLLLoss(ignore_index=0,reduction="sum")
def create_checkpointer(opts , logger):
if opts.model:
logger.info("Loading checkpoint from %s" % opts.model)
checkpointer = torch.load(opts.model)
train_ops = checkpointer["opts"]
return checkpointer,train_ops
else:
return None
def create_models(opts,train_opts,embeddings,checkpointer,logger):
model = BiaffineSegmentationModel(train_opts.dim,train_opts.layer,train_opts.head,train_opts.ff,train_opts.dropout,embeddings,train_opts.window,train_opts.norm_after,train_opts.seglayers,
train_opts.segwords,
train_opts.middecode,
train_opts.gate)
model.load_state_dict(checkpointer["model"],strict=False)
if opts.gpu and torch.cuda.is_available():
model = model.cuda()
return model
def create_getlabel(opts):
return CNSeglayerLabelResult()
def create_calloss(opts):
return SegLayerLoss()
def create_eval(opts):
return SegLayerEvalSaver()
def valid_single():
opts = create_parse_valid()
#createlogs
logger = create_logs(opts)
logger.info("Start creating.")
for k in opts.__dict__:
logger.info(k + ":" + str(opts.__dict__[k]))
#create checkpointer
logger.info("Checkpoint.")
checkpoint,train_ops = create_checkpointer(opts , logger)
#create vocabs
logger.info("Vocabs")
vocabs = create_vocabs(opts,checkpoint)
#create embeddings
logger.info("Embeddings")
if train_ops.position_encoding:
logger.info("Use Position Encoding")
embeddings = create_embeddings(opts,train_ops,vocabs,checkpoint)
#create models
logger.info("Create Models")
model = create_models(opts,train_ops,embeddings,checkpoint,logger)
logger.info("Valid dataset")
validdataset = create_valid_dataset(opts , vocabs,logger)
logger.info("Getlabel")
getlabel = create_getlabel(opts)
logger.info("Calclualte Loss")
calloss = create_calloss(opts)
logger.info("Eval Files")
evalsaver = create_eval(opts)
sofs = nn.Softmax(-1)
try:
logger.info("Valid start.")
logger.info("Model from " + opts.model)
validBatchs = Dataset(vocabs, validdataset, opts.valid_batch_size)
model.eval()
with torch.no_grad():
score2 = ""
sens2 = ""
startvalid = time.time()
starts = time.time()
for uid, train_batchs in enumerate(validBatchs.next()):
starts = time.time()
source = train_batchs[0]
sens = train_batchs[2]
source = Variable(torch.Tensor(source).long()).contiguous()
if opts.gpu:
source = source.cuda()
outs,out2 = model(source)
outscore = outs[:,:,:]
outscore = sofs(outscore)
outscore = np.array(outscore.data.cpu())[:,:,:]
outs = torch.argmax(outs, 2)
outs = np.array(outs.data.cpu())[:, 1:]
usetimes = time.time() - starts
for j in range(outs.shape[0]):
sentence = sens[j]
out = outs[j]
scorej = outscore[j]
sen = ""
scores = ""
for idx, char in enumerate(sentence):
sen += char
scores = scores + str(scorej[idx,2])
scores = scores + " "
if idx < len(out) and idx != len(sentence) - 1 and out[idx] == 2:
sen += " "
sens2 = sens2 + sen
sens2 = sens2 + "\n"
score2 = score2 + scores
score2 = score2 + "\n"
if uid % opts.showsteps == 0 and uid is not 0:
logger.info("Steps {0} Cost {1}".format(str(uid),str(time.time() - starts)))
starts = time.time()
logger.info("Valid finish")
logger.info("Valid cost " + str(time.time() - startvalid))
logger.info("Valid saves " + opts.savefiles)
with codecs.open(opts.savefiles , "w" , "utf8") as fs:
fs.write(sens2)
except Exception as e:
ms = traceback.format_exc()
logger.info(ms)
if __name__=="__main__":
valid_single()